The SMARTebox BATT is an IoT solution for the remote reading of flow meters, pressure sensors, and alarm contacts, as well as for anomaly detection in large-scale consumption and drinking water distribution networks. Additionally, leaks can be identified by monitoring pressure. The data logger is battery-powered, waterproof, and compatible with all instruments currently used in water networks. Thanks to cellular connectivity via LTE-M and NB-IoT, the SMARTebox BATT enables monitoring at decentralized and underground facilities. If the signal in the shaft is heavily attenuated, an optional external antenna can be used. Data transmission and integrity are ensured via a certified mobile network provider's transmission path to the IoT platform. Data can be imported into any operator system via the IoT platform's open REST API.